outlook express ?????

[Ed_P 21]

Can one install each new version of Mozilla overtop of the existing one?

According to the Mozilla Release notes

Before installing a new version of Mozilla, you should uninstall your previous version first. If you have a third-party extension installed, particularly the spell checker, you should also completely delete your Mozilla install directory before making a new install. Do not install over an old Mozilla version.

But as nlinecomputers said Steeler Fan for Life is the expert.

[longgone 36]

EdP.....Well ..... I confuse easy .. and I am not blonde either ... I have already d/l'd Mozilla 1.7b but have not as of yet installed it. So you are suggesting I wait until the "b" model is remade into the "stable final" model before I get more brave. I can do that, never like to speed into things.

[nlinecomputers 0]

Mozilla 1.7b is a beta version of Mozilla. Like any beta it may be more prone to bugs and crashes. If you willing to be a tester( Mozilla can always use the feedback but in theory it could do harm to your system) then use it otherwise I'd either wait for 1.7 final or download 1.6 which is stable.Note that Mozilla released 1.7 yesterday as a Release candidate. So you should use THAT if you want to go with the latest.Note while 1.7 is still undergoing test I've found it to be very stable. Has not crashed once on me except when I tried to use a 3rd party extension and that is to be expected if your using 3rd party apps.

[GolfProRM 0]

As far as installling over the top, it usually works. Sometimes, depending on the changes made to the code, some things won't work... It's best to uninstall the Moz program and then install the new one (it won't affect your profile)... It doesn't take much more time to do this, so is probably the way to go.

[Ed_P 21]

So you are suggesting I wait until the "b" model is remade into the "stable final" model before I get more brave.

YES Final products are the best: ie least bugs, most stable.Release Candidates are good: some bugs, mostly stable.Betas: have some bugs, may be stable.Alphas: known to contain bugs and looking to find more, unstable and looking to find how unstable.Choose your risk level. The better your backup/recovery capabilities the more risks you can take.