My CRT monitor only shows a small white floating thing, nothing else.

Royce not sure how to tell if the CRT is actually dead but hook your computer to your tv if it has a VGA input it should work on at least XP as for getting another monitor put an add on Kijiji and say your looking for a CRT and Im sure someone will give you one just to get rid of them I just gave away 2 last year for free when i saw an add on kijijiI just wanted them out and Im sure theres more people out there's like me out there it doesnt hurt to ask. be willing to go get it though

Royce Rivard, I am convinced it can be fixed. Be careful so, CRT monitors pack quite a punch. there are some high voltage circuitries that can and will shock you. Two things we need to know is, what model is your CRT and if you can take a picture of what you see. Also, and here you want to be careful, take the back of your CRT and take plenty of pictures of the boards so we can check those out as well with you. the single dot can be caused by failed electrolytic capacitors and/or failed IC's on the power board. Given the age of CRT's I am inclined to suspect the caps...Please remember not to touch anything until you properly discharged the CRT and power caps.