Switching when internet-cable plugged

[motyka91]

Hello. I've got a little bit problem with my Kalyway 10.5.2. It works perfect. 8600 with nvinject , audio with alc889 etc. It's so beautiful that it works because i remember when i started with Jas 10.4.7 and it made me so much problems. My problem is : When i Switch on my PC and i Choose (i've got dual_boot - vista&mac) Mac , everything goes fine until moment of logging into system.

If internet-cable is UNplugged everything goes GREAT , but if internet-cable is plugged a screen makes black and fun finishes.

Do you know what should iDo with this ? I know that so stupid but i really makes me problem. iKnow that I can switch on computer with cable unplugged and plug it afterwards , but it's so unHandy. Please, Help me if you can. I want to add that iHave 2 Ethernet Cards :

Realtek 8139(no integreted with motherboard) and another Realtek Card which is integreted with motherboard(gigabyte p35-ds3). Thanks