Where you able to figure out the PSS issue ?
I have disabled the PSS device on the eee box as having it enabled at all caused lockups.
As far as I can tell, 0810 allows upgrading (or includes) newer graphics drivers. If someone is running an 0810 alpha on an eeebox (jondecker76?) perhaps they could comment on whether they've tried the latest graphics drivers on the eeebox.
I tested my EeeBox202 with 0810 alpha 2.4.
Under 0810 the freezing does not occur with UI2 + mask, however the overlay is not occurring properly. The menus work great until the PSS comes on and then the graphics become garbled as the PSS and menu try to co-exist together. The system does not lock up, it does not freeze but it is still un-usable. At the time I was going to upgrade to the latest intel drivers (2.6.x something at the time) but xv acceleration has been disabled in the 2.6.x versions of the intel driver.
Checking now the 2.7.0 driver is out. Xv has been re-enabled but there are tearing issues when using it (according to http://intellinuxgraphics.org/
Gutsy (0710) uses v2.1.1 of the intel driver <-- freezing
Intrepid (0810) uses v2.4.1 of the intel driver <-- no freezing but garbled menus/pics in UI2 + overlay
Jauny (0904) uses v2.6.3 of the intel driver <-- would have tried but xv is disabled so didn't bother
Looks like the 'freezing' was fixed between 2.1.1 and 2.4.1 but incorrect overlay is garbling the menus and graphics.