Try doing these steps: Install Firefox 11 from [http://www.getfirefox.com www.getfirefox.com]. simply install it over your current version of Firefox to make sure all Windows Registry settings get recreated correctly. Run all Windows Updates. Service packs, etc. You may have to run this several times to ensure that you get all needed updates. Download and Install MalwareBytes Anti-Malware, run a full Scan. [http://www.malwarebytes.org/ http://www.malwarebytes.org/]. This helps check that there are no viruses on your computer causing issues. You can uninstall this program after you clean off any infections. Update your graphics driver (Firefox uses your graphics card for some rendering, and an out of date graphics card driver can cause problems. [https://support.mozilla.org/en-US/kb/how-do-i-upgrade-my-graphics-drivers https://support.mozilla.org/en-US/kb/how-do-i-upgrade-my-graphics-drivers]. After doing all these steps, try restarting your computer, and seeing if Pogo will run. If it doesn't work, go into your control panel, and uninstall every installation of Java and Flash that you have. Restart your computer again, then install them from [http://fpdownload.macromedia.com/pub/flashplayer/current/licensing/win/install_flash_player_11_plugin_32bit.exe http://fpdownload.macromedia.com/pub/flashplayer/current/licensing/win/install_flash_player_11_plugin_32bit.exe] for Flash, and [http://javadl.sun.com/webapps/download/AutoDL?BundleId=62313 http://javadl.sun.com/webapps/download/AutoDL?BundleId=62313] for Java. again, restart your PC, then test. Try to start Firefox in [[Safe mode|Safe mode]]. This mode disables all extensions, user customizations, hardware acceleration, etc. temporarily for diagnostic and troubleshooting. If Firefox works find in Safe Mode, then this is likely an add-on issue. Restart Firefox in normal mode, then type "About:addons" (without the quotes) in the address bar. Disable your extensions one by one, restarting Firefox between each one, until you find the trouble maker. Once you do, you can disable that add-on and report the issue to that add-on's developer. If it does not help the issue, open up your Firefox Profile. [[Backing up your information|Backing up your information]] shows you where that is stored by default. Delete or rename the "pluginreg.dat" file (make sure Firefox is closed when you do this). Test again.

Pogo uses Java, so you can try to uninstall Java and reinstall the latest 32 bit Java version to see if that helps. *http://www.oracle.com/technetwork/java/javase/downloads/index.html (Java Platform > Java SE 6 > Download JRE)