Q: How many Windows support staff does it take to change a light bulb?
A: Well, we have an exact copy of your bulb here, and it works fine. Did you check your CONFIG.SYS?
Q: How many psychiatrists does it take to change a light bulb?
A: Answer: Only one, but the light bulb has to WANT to change.
Q: How many mice does it take to screw in a light bulb?
A: Two, the trick is getting them in there.
Q: How many graduate students does it take to screw in a light bulb?
A: Only one, but it may take upwards of five years for him to get it done.
Q: How many Russian leaders does it take to change a light bulb?
A: Nobody knows. Russian leaders don't last as long as light bulbs.
Q: What is the difference between a pregnant woman and a light bulb?
A: You can unscrew a light bulb.