Not really a bug - more a sort of... 'inconvenient feature'.
Pressing Alt-Tab to switch to desk top, then Alt-Tab to return to AH results in Gamma settings being reset to a different value.
The fix is simply to reset the Gamma again and all is well - but I thought you'd like to know - if you don't already.
Not a 'bug' as such, but maybe: -
- a standard recognised extended reset procedure
or - the normal reset process from desk top
or - the 'Restart Graphic Sub-System from Desktop' sequence
or - a required advanced experimental graphic restart feature
or - the normal programmatic switch-back requirement (by design)
etc.
