http://forum.lowyat.net/ Tue, 29 Sep 2026 10:28:38 +0800 FeedCreator 1.7.2 http://forum.lowyat.net/topic/354877 Annoying- just the word to describe the problem I am facing. The worst is the sudden increment and decrement of volume from my Dell Dimension 9150&#39;s 5.1 surround speakers. I placed the front two speakers at the front, and the rear at the back. I noticed that sometimes when my wireless mouse lights up, the volume would increase (and vice versa). Is this a driver issue of my wireless keyboard + mouse ? There is a volume knob on my wireless keyboard. Perhaps the drivers are acting up and causing the extra controls on the keyboard to behave eratically? <br /><br />The other issue is with my PSU. After a while of usage, there is this loud buzzing noise from the back of my PC. Whirring fan noise ? Or simply &#39;high-voltage stuff&#39; ? Or maybe magnetic anomalies ? I have no idea what is going on and it is extremely annoying. This has gone on for months already. I tried calling Dell, but most of the time I am at uni. Help appreciated. <!--emo&:)--><img src='http://static.lowyat.net/style_emoticons/default/smile.gif' border='0' style='vertical-align:middle' alt='smile.gif' /><!--endemo--> <br /><br />These are my PC specs: <br />- Intel Pentium D 840 3.2GHz<br />- 2.0Gb RAM <br />- Nvidia GeForce 7800GTX 256Mb <br />- Creative X-Fi XtremeMusic <br />- 19&quot; Dell TFT display <br />- Dell 5.1 surround speakers <br />- 250Gb HD <br />- Windows XP Professional SP2 (fully-updated) + Windows Vista RC1<br /><br />p/s: damn, there are THIS many users in this forum? wow. damnn again, a newbie?&#33;&#33; default_name Technical Support Tue, 17 Oct 2006 11:52:23 +0800