shaking vieuw

i am an designer, and since last update i got major issues with the vieuw of sl,i make very small detailed prim work,and if i try to get close to my item my whole screen is shaking,prims that not stay on same size when i try to ajust them if i hold it and i got it perfect size so it fit perfect to the other prims and when i release it then it goes smaller or bigger 0.001 out of his own,also the edge of the prim deformed constantly so that iu can't cling the prim perfect to eichother.
also when ya are close to the object that the whole vieuw is vibrating,i got a new pc with 2 grafic carts and new screen,never had this problem before since last update,i can't work this way,it's impossible to make such small detailed work like this,hope problem will solved soon

That may be a hard one to answer, unless you can get a definitive answer from a Linden

It sounds like something has changed that affects resolution, like an increase the size/limits of the SL world, increase the viewing distance. Maybe you have increased the viewing distance yourself (Draw Distance). These things can affect the resolution of space in the vicinity of your avatar.

Another possibility, more remote, is that some change to the precision of parameters being used for graphics has occurred. Lower precision, less accuracy. for example, some hardware / drivers use 24 bit precision where others use 32 bit.