All work Units giving "Computational Error"

Same for me and for all cuda or open_cl appli (M@h and Einstein@h)
The last Whql nvidia driver is buggy !!!
(see the Einstein@home forum)
Go back to 290 or less version (I used the precedent whql version: 285.62 ) and every thing should go back in order

Same for my base PC with HD3850. See:-

http://milkyway.cs.rpi.edu/milkyway/result.php?resultid=117260051

Also not getting any new MilkyWay@Home v0.82 (ati14) tasks for a couple of days on that PC e.g.,
27/02/2012 02:19:16 | Cosmology@Home | Requesting new tasks for ATI GPU
27/02/2012 02:19:18 | Cosmology@Home | Scheduler request completed: got 0 new tasks

Correction:- restarted and now almost OK, see previously-saved WU and the result

http://milkyway.cs.rpi.edu/milkyway/result.php?resultid=120300292

Still ... no new MilkyWay@Home v0.82 (ati14) tasks.

Thx Matt :), you got it spot on! lol, how did you know it was missing?

Btw I didn't install it as I didn't see that I'd need a developer kit!, & my C drv is low on space....... although I ended up putting it on D drv, lol.

Btw sorry for delayed replie, even though I ticked email sub I didn't get any.

[update] Yep that fixed it, didn't even have to reboot ;). Now to fix the horrible GUI lag in preferences.