When I use 'Microsoft Accessibility Tools' with firefox browser, then the Firefox window shows "server busy" prompt. And that particular server busy window contains 'switchto' and 'retry' options. The 'server busy' window shows when we browse the websites like; www.tsn.ca, www.goal.com, ...etc (with Accessibility tools). So I wish to know the reason behind this 'server busy' window? Please help.