1. try different browser, like Firefox or Mozilla.
2, 500 code is root permission denial, maybe your computer has spyware using certain service you are not aware of. use zonealarm freeware to check services internet access from your computer.
2, 500 code is root permission denial, maybe your computer has spyware using certain service you are not aware of. use zonealarm freeware to check services internet access from your computer.