W7.

I recently installed a new ATI graphics card. Since then, I've lost 
right-click drag-and-drop function. Left-click drag and drop is normal.

Right click context menu is normal, so it's not a mouse problem. I've tried 
another mouse, no difference. When right dragging, the item appears to move 
with the cursor as usual, but dropping it in the new location, nothing 
happens. No menu, no action.

I rolled back the display drivers and uninstalled the ATI Catalyst 
software, but the problem persists.

I don't particularly want to use System Restore, as the display with the 
new graphics card is noticeably improved, even without the ATI drivers. 
(Uninstalling these seemed to make no difference to the display).  System 
Restore will revert the system back to the previous lower-resolution 
display.   I'll try it if there's no other simple solution to this problem.

I ran Check Disk and rebooted, but it didn't fix the problem.

I've tried or tested a registry restoration, mouse settings, a sticky 
escape key, start menu properties ( - 'Enable context menus and 
dragging)  all to no avail. I haven't installed any new software recently.
I've run several different antimalware scans (Avira, Malwarebytes, McAfee 
Stinger)---all clean.

Maybe the new graphics card is just a coincidence and has nothing to do 
with the problem.

How can I regain my right-drag function? Left-dragging has always been a 
real pain. Much of the time it comes up with unintended results and you 
never quite know what's happening, unless you can  remember all its rules.

Don Penlington

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