Installed Photoshop CS3 trial, now previous Photoshop 7 won't work

I've downloaded and installed PS CS3 trial and given it a go but decided to stick with version 7 as it's still doing everything I need.

So when the trial period on CS3 has expired I've uninstalled it but now Photoshop 7 won't run. I get this message a few seconds after I click on the PS icon . ..

"An unexpected and unrecoverable problem has occurred due to a program error. Photoshop will now exit"

I've reinstalled PS7 several times to no avail.

Since I installed the CS3 trial I upgraded from Tiger to Leopard - maybe this is the cause!

Any idea's how I can get PS7 working again?

Cheers
steve

Since I installed the CS3 trial I upgraded from Tiger to Leopard - maybe this is the cause!

Photoshop 7 will not run under Leopard...

Didn't read the FAQs Aay!

All you have to do is revert back to Tiger from the backup system clone you made before installing Leopard and everything will work.

Bugger! Guess I'll be upgrading to CS3 after all!!

Do it before CS4 is officially announced, as Photoshop 7 will not qualify for any upgrade once CS4 is announced.

Just revert to Tiger from your Backup. Its much more stable with CS3 anyway.