i've been having probs with redraws since 2.5. i have/had my apps locked into memory, and it still would redraw, even coming out of a text message which really shouldn't be memory intensive. i have launcher pro, and also power strip, that way, while i'm in another app, i can hit the home button, and power strip comes up with my apps instead of me having to wait for my home screen to refresh itself.
i've tried adw launcher with the same results. even uninstalled launcher pro and power strip, and when i hit the app drawer, it shows up blank for about 7 seconds before the apps come back.
not really sure what to do at this point, i'm loving the rom, but this is the only problem that i've had.