Strange Noises

Hi, I'm having a problem with Cross, hope someone can help me.
Basically, every action, even opening the program itself, generates a loud noise through my speakers like a piano with loads of reverb.
This has happened ever since V3 - I am still using V2 because of it and that is fine.
I don't notice it if I use an Asio interface, but I'm on the road a lot an most often use headphones through the built in jack on my laptop.
If I record my mixes through the Cross built-in record then the sounds don't show up on the recording, they are just very annoying when using the program.
I've taken a screen cap of the problem here: http://youtu.be/OTr74rio9fI
Has anyone else had this?
If someone can help me solve the issue I'd be really grateful.
Thanks
Basically, every action, even opening the program itself, generates a loud noise through my speakers like a piano with loads of reverb.
This has happened ever since V3 - I am still using V2 because of it and that is fine.
I don't notice it if I use an Asio interface, but I'm on the road a lot an most often use headphones through the built in jack on my laptop.
If I record my mixes through the Cross built-in record then the sounds don't show up on the recording, they are just very annoying when using the program.
I've taken a screen cap of the problem here: http://youtu.be/OTr74rio9fI
Has anyone else had this?
If someone can help me solve the issue I'd be really grateful.
Thanks