Javascript error

Error when Adsense code on my page

[Alternative Future]

Greetings all,

I am getting a JavaScript error on line 16 char 360 error expected ')'today. Is anyone else experiencing this? I haven’t done anything new (apart from downloaded the yahoo toolbar yesterday). If I remove all adsense code from the page the error goes away.

TIA,

-George

[Alternative Future]

Uninstalled all yahoo components. Restarted PC still nothing. Completed a system restore to a previous stable date, nothing. This happens on all sites I view with either IE 6.0.2900.2180 xp2 or Firefox 1.5.0.1. Netscape 7.2 & Opera 8.0 is fine no errors and displays adsense.
Firefox gives a better idea of where the error is and this is the line:
a.google_num_ad_slots+1}else{a.google_num_ad_slots=1}if(a.google_num_slots_to_rotate){i[h]=b;if(a.google_num_slot_to_show==b){a.google_num_slot_to_show=e%a.google_num_slots_to_rotate+1}if(a.google_num_slot_to_show!=a.google_num_ad_slots){return}}else if(a.google_num_ad_slots>3&&h==""){return}}c("dt",f.getTime());c("hgoogle_language);if(a.google_country){c("gl",a.google_country)}else{c("gl",a.google_gl)}c("gr",a.google_region);g("gcs",a.google_city);g("hints",a.google_hints);c("adsafe",a.google_safe)

with the hint as missing ) after argument list line 15
if(a.google_country){c("gl",a.google_country)}
with the arrow pointing to the "gl"

This I am sure all started to happen after I downloaded Yahoo messenger yesterday. Before this time I had no problems viewing adsense on my site or any other.

Has anyone came accross this before and what did they do to overcome it?

TIA,

-George