Description of problem:
During DVD upgrade from FC6 to Test4, GUI stalled (grayed-out "back" and "next"
buttons) after all rpm updates completed.

Version-Release number of selected component (if applicable):
Fedora 7 Test4

How reproducible:
Unknown

Steps to Reproduce:
1. Boot Fedora 7-test4 install DVD on FC6 system and run mediacheck (pass)
2. Upgrade from FC6 with no boot loader update
3. All rpm updates reported complete but screen does not advance after reporting
889/889 rpms upgraded (approximately).
4. Wait ~20mins since last activity then ctl-alt-bksp to kill X and GUI. 
Install terminal screen is also stalled so alt-F2 to new terminal screen and
reboot system.
5. Fedora 7 boots successfully! :)

  
Actual results:
Must kill X to reboot upgraded system.

Expected results:
Anaconda GUI "next" button should become available and allow upgrade install to
complete.

Additional info:
Intel 915GEV mobo with 2.8GHz Celeron D, 2GB DDR, IDE PATA DVD-ROM, SATA system
hard drive.