I am the voice of dissent ! I installed PSP9 11th October onto my windows xp system (sp2). I have had no problems whatsoever during instal or use. It picked up an auto update on the first time of use to presumably fix a bug that had been found, but since then there have been no patches or updates. If you think it is worth the price of upgrading from 8 to 9 is another question which can only be answered by the individual. However I have to say I am more than happy with it.

And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies live;
Their heads are green, and their hands are blue, And they went to sea in a Sieve.

Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html