Win98 Strange Boot

Try to uninstall the new program(game) and see what happens.

It probably will not restore you back to the original settings but it is worth the try.

If that does not work then you will have to reconfigure your startup programs.

Go to start,programs, accesories, system information. In there you will find a tools item on the menu. click on it and then click on the startup tab, there you can control what loads and hopefully those items will be there to load.

Was this game from a store bought CD or downloaded off the Web? Try removing the program and see what happens. Hate to say it but I suspect your system is basically hosed.

two things,
1. Deus EX is I think an online game and if it is trying to connect but cant there will be a long time out, can be as much as 7 min. try waiting.
2. if your drive is indeed "hosed" (nice phrase that) consider using a second drive to load a new OS on and then you can access the original drive to mine your data.

Try using the windows key to access control panel and uninstall the game. That is why it is important to install software one program at a time, Useing any new protgram for a few days and make sure there are no problems before installing anything more.
Check out the minimum system requirements for the game. It may be overtaxing your celeron system somewhere. If you can't access the control panel to remove the game you may have to do a manual uninstall from DOS and remove any registry settings for the game. You can reinstall windows and that should reset your system defaults.
Best solution for future: Keep son off system. Help him with summer job to buy own computer if necessary. Recycling centers sell decent refurbished systems at reasonable prices. That way he can crash his own system without interfering with yours. And next time buy Pentium, or Athlon. Lesser chips just do not have the juice.