[R] R 1.9.1 Fails to Start on WinXP SP2

[Scott Higginbotham]

I have two computers both of which are running Windows XP SP2. R 1.9.1
runs just fine on one but not the other. Both installations of R came
from the same installation package. When I click on the desktop icon an
hourglass shows up then disappears. Similarly, if I start RGUI the
process shows up in task-manager then abruptly disappears.
Interestingly, I can access R in Excel via the D(COM) Server on both
computers.

Any ideas?

Thanks,

Scott