96 jetta pops out of reverse

Question two from newbie here. My car will pop out of reverse when cold, not when warm. Sometimes, After putting it in reverse it actually goes forward, as in first gear. Again, only when she is cold. NEVER when warmed up for more than 10 minutes. Thanks again!

You need to have your linkage adjusted. There are plastic bushings and parts that wear out that you can replace yourself (rebuild kits are available online) but it sounds adjustment is needed and to do it properly requires special tools. You may want to change or check the level of the oil in your transmission. It most likely won't help, but it won't hurt anything.