Fuzzy Combo Box - FixIT doesn't work?

Hi

Simple problem.  I have a ComboBox on my sheet. Works fine, except that it's "Fuzzy" if the zoom level is less than 100%.

The problem - and the supposed solution - is described here:
http://support.microsoft.com/kb/2589402

I duly downloaded the "FixIt" patch ... no change.

Logged off, repeated with an Admin account, no improvement. Rebooted, no improvement.

So the "FixIT" doesn't seem to work...?

Anybody got any suggestions?

Chris