Sorry - I got no idea. This has never happened to me.
Any additional info? bulb brand new? used ballast? Has this ever happened to you before?
If you have a multimeter, you could check the output of the ballast. I am unclear whether you can check the strike.
Assuming you can not service either one, and it appear time is critical, look to buy new ones of both. Troubleshoot by replacing the bulb first, then the ballast.
Buy from a good store w/return policy (e.g, amazon). You may have problems returning the bulb, so buy one you can use in the future. You should be able to return the ballast if needed.
Maybe you could borrow some equipment to troubleshoot? Or if you can't buy new (or wary of having problems returning), maybe you could get some used gear.