Help Help wifi issue!! Get cyanogen off

[aaronp1994]

I bought a second hand Htc dream/google G1...

And i dont have a date plan and i am on rogers. and the phone is a rogers phone.

Now..

In wifi settings...

I try to turn on my wifi and it just crashes, how can i fix this? I NEED WIFI!!

=[

HELP.

btw im prepaid.

How do i just get the phone back to normal without it being rooted.

I want it default with no mods.

EDIT:

I will also sometimes get it working... right when it saud wi-fi turned on.. it'll shut off and on.