this is really weird, but sometimes when i open command prompt a lot of commands arent found. most or all of them are related to the internet. for example, ping, ftp, and telnet all do not function. when i type them in it simply says command not found. so then i try command.com instead of command.exe and open it up, but command.com has got the same problem. usually the only way to fix it is to restart, and its getting annoying. can anyone help plzzz........