I use 24 online client too. Well it does crash in vista...even the latest one, but runs fine under win7. Anyways, if u still havent found a workaround, i wud suggest u contact ur ISP and ask them to enable http login for u. That wud eradicate the need of evn installing the 24 online client software. All u have to do is open the provided login url in IE(address will be provided by isp) fill in ur username/pass and keep the IE window open throughout ur entire session. Hope this helps