User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a5pre) Gecko/20100407 Minefield/3.7a5pre ID:20100408020856 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a5pre) Gecko/20100407 Minefield/3.7a5pre ID:20100408020856 Diarog Button label does not draw properly. Reproducible: Always Steps to Reproduce: 1. Start Minefield with new profile 2. Help > About Minefield, or Help > Cherck Updates... 3. Actual Results: Button label does not draw properly. Whe mouse hover it, the label appaers. Expected Results: Button label should draw properly. Regression Works: http://hg.mozilla.org/mozilla-central/rev/094455686d73 Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a5pre) Gecko/20100407 Minefield/3.7a5pre ID:20100407195147 Broken: http://hg.mozilla.org/mozilla-central/rev/9480726de986 Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a5pre) Gecko/20100407 Minefield/3.7a5pre ID:20100407204139 Pushlog: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=094455686d73&tochange=9480726de986

No problems here. Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a5pre) Gecko/20100408 Minefield/3.7a5pre Firefox/3.6 - Build ID: 20100408041901

Seems that enabling dw/d2d fixed the rendering problem.

Also seeing this on Linux, many items don't repaint after mouse moves off them, including menu labels, and tab labels. Also text input areas, including this one which I can't see at the moment. :-) Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.3a5pre) Gecko/20100408 Minefield/3.7a5pre ID:20100408031332

Bug 542605 is now backed out. And this was solved. Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a5pre) Gecko/20100407 Minefield/3.7a5pre ID:20100408071622