At work I use a Windows PC. For some reason Microsoft Word windows were always staying on top of every other window. This was tolerable for a little bit, but very quickly became a real problem. I wasn't able to use a different application and view a Word document at the same time and the only way I could switch to another window was by minimizing the Word window. I finally figured out (serendipitously) how to get things to behave properly...

Sometimes workplaces setup draconian firewalls which block urls, and don't let you get out on ports other than 80 and 443. As a developer this is a bit restrictive...

I wanted to run a GUI application (AIX) on a local cygwin XServer (Windows) but always got a XWin: client # rejected from IP address error message appearing in the log file (%cygwin_root%\tmp\XWin.log). I looked over the FAQ and user guides on cygwin's site but to no avail. Even googling wasn't really much help. Thankfully I stumbled upon the answer in a tangential link of interest about CoLinux.