i used 3 inv. potions and got to the stasis chamber with the same problem, i couldnt use the key. i sat around waiting for a GM to respond and i noticed if i scanned over the chamber i would see the name of it pop up in the corner.  after 10mins of trying to pinpoint the source, i found it :P  there is a VERY small sliver on the bottom right egde of the chamber that u can use the key on.  its on the left if you have your back to the wall
  GL :)
  -narz
  70lock draka