diff --git a/checkin_notes b/checkin_notes
index bbd4fa866b..c06f90a321 100755
--- a/checkin_notes
+++ b/checkin_notes
@@ -8241,10 +8241,10 @@ Charlie 1 Sep 2007
     
     clientgui/
         mac/
-            boinc.tiff (removed)
+            boinc.tiff (deleted)
     clientscr/
         res/
-            boinc.tiff (added)
+            boinc.jpg (added)
     mac_build/
         boinc.xcodeproj/
             project.pbxproj
diff --git a/clientscr/res/boinc.jpg b/clientscr/res/boinc.jpg
new file mode 100644
index 0000000000..556968a5f6
Binary files /dev/null and b/clientscr/res/boinc.jpg differ
diff --git a/mac_build/boinc.xcodeproj/project.pbxproj b/mac_build/boinc.xcodeproj/project.pbxproj
index eab48c5814..6cb63ce053 100755
--- a/mac_build/boinc.xcodeproj/project.pbxproj
+++ b/mac_build/boinc.xcodeproj/project.pbxproj
@@ -37,7 +37,7 @@
 		DD01B6790C16723C0023A806 /* Carbon.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 20286C33FDCF999611CA2CEA /* Carbon.framework */; };
 		DD01B7120C16723D0023A806 /* Security.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = DD1929D80918A2F100C31BCF /* Security.framework */; };
 		DD0A06F50869A2D2007CD86E /* prefs.C in Sources */ = {isa = PBXBuildFile; fileRef = DD344BE407C5B1670043025C /* prefs.C */; };
-		DD0C5A8B0816711400CEC5D7 /* boinc.tiff in Resources */ = {isa = PBXBuildFile; fileRef = DD0C5A8A0816711400CEC5D7 /* boinc.tiff */; };
+		DD0C5A8B0816711400CEC5D7 /* boinc.jpg in Resources */ = {isa = PBXBuildFile; fileRef = DD0C5A8A0816711400CEC5D7 /* boinc.jpg */; };
 		DD1277C2081F3E73007B5DE1 /* LoginItemAPI.c in Sources */ = {isa = PBXBuildFile; fileRef = DD1277BE081F3E73007B5DE1 /* LoginItemAPI.c */; };
 		DD1277C4081F3E73007B5DE1 /* PostInstall.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DD1277C0081F3E73007B5DE1 /* PostInstall.cpp */; };
 		DD1277E6081F44C1007B5DE1 /* Carbon.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 20286C33FDCF999611CA2CEA /* Carbon.framework */; };
@@ -877,7 +877,7 @@
 		AA8B6B24046C366200A80164 /* ss_logic.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; name = ss_logic.h; path = ../client/ss_logic.h; sourceTree = SOURCE_ROOT; };
 		AAA31C97042157A800A80164 /* shmem.C */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.cpp.cpp; name = shmem.C; path = ../lib/shmem.C; sourceTree = SOURCE_ROOT; };
 		AAA31C98042157A800A80164 /* shmem.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; name = shmem.h; path = ../lib/shmem.h; sourceTree = SOURCE_ROOT; };
-		DD0C5A8A0816711400CEC5D7 /* boinc.tiff */ = {isa = PBXFileReference; lastKnownFileType = image.tiff; name = boinc.tiff; path = ../clientscr/res/boinc.tiff; sourceTree = SOURCE_ROOT; };
+		DD0C5A8A0816711400CEC5D7 /* boinc.jpg */ = {isa = PBXFileReference; lastKnownFileType = image.jpeg; name = boinc.jpg; path = ../clientscr/res/boinc.jpg; sourceTree = SOURCE_ROOT; };
 		DD1277B3081F3D67007B5DE1 /* PostInstall.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = PostInstall.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		DD1277B5081F3D67007B5DE1 /* PostInstall-Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.xml; path = "PostInstall-Info.plist"; sourceTree = "<group>"; };
 		DD1277BE081F3E73007B5DE1 /* LoginItemAPI.c */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.c; name = LoginItemAPI.c; path = ../mac_installer/LoginItemAPI.c; sourceTree = SOURCE_ROOT; };
@@ -1439,7 +1439,7 @@
 		20286C2CFDCF999611CA2CEA /* Resources */ = {
 			isa = PBXGroup;
 			children = (
-				DD0C5A8A0816711400CEC5D7 /* boinc.tiff */,
+				DD0C5A8A0816711400CEC5D7 /* boinc.jpg */,
 				DDF3028907CCCE2C00701169 /* BOINCMgr.icns */,
 				DD531BC50C193D3800742E50 /* MacInstaller.icns */,
 				DD531BC70C193D5200742E50 /* MacUninstaller.icns */,
@@ -2359,7 +2359,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				DD616A3008150050006981C1 /* InfoPlist.strings in Resources */,
-				DD0C5A8B0816711400CEC5D7 /* boinc.tiff in Resources */,
+				DD0C5A8B0816711400CEC5D7 /* boinc.jpg in Resources */,
 				DD48091F081A66F100A174AA /* BOINCSaver.nib in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;