Description of problem: It seems with the removal of /proc/acpi/sleep the KDE klaptop and ACPI power management functions are broken. Everything is greyed out. Version-Release number of selected component (if applicable): kdeutils-3.4.2-0.fc4.1
will be fixed in the next errata kernel. (Its deprecated upstream, but shouldn't go away until FC5, the removal in the current errata kernels for FC3/FC4 was an oversight).
2.6.14-1.1637_FC4 has been released as an update for FC4. Please retest with this update, as a large amount of code has been changed in this release, which may have fixed your problem. Thank you.