When ever I mark messages and press the DELETE or SPAM buttons, I never know if the marked messages are the ones that will be used. This has been going on for months.
THIS IS NOT A BROWSER ISSUE.
I've seen the problem for the last few months under XP, Vista, & 7, using IE, Chrome & Firefox, at work and at home. It makes no difference whether you just logged in or have read and deleted a few messages.
Still having same problem. I called it in and the response was" I can;t escalate the problem to Technical support as no one else has reported this issue. Must be your system!"
Today I learn that forwarding doesn't work correctly either.