Sounds familiar, but with Windows XP as the culprit. There is something
fishy with those laptops from Compaq - not to say they're a bad purchase...
Only way I can think of is by removing it from the kernel; I believe you may
want to use a vanilla-kernel, since RH is using the RTC for
performance-boosting for the desktop. Instead, you may want to try the
ck-patchset from Con Kolivas:
If you need any help compiling or patching, post it!
Gentoo Base System version 22.214.171.124p1
Linux 2.5.74-mm1 i686 AMD Athlon(TM)Processor GNU/Linux