I thought this might go in here rather than Peripherals since it's relating to internal hardware. My mom's 2005 iMac G5 has been panicking when checking email (Mail 2.x, up-to-date install of Tiger). I got her to send me the contents of her panic log and quickly found this: Code: Kernel version: Darwin Kernel Version 8.7.0: Fri May 26 15:20:53 PDT 2006; root:xnu-792.6.76.obj~1/RELEASE_PPC panic(cpu 0 caller 0xFFFF0003): 0x300 - Data access Latest stack backtrace for cpu 0: Backtrace: 0x00095718 0x00095C30 0x0002683C 0x000A8404 0x000ABD80 Proceeding back via exception chain: Exception state (sv=0x29AC6C80) PC=0x00C64AB4; MSR=0x0000B030; DAR=0x42BA54DC; DSISR=0x40000000; LR=0x00C65558; R1=0x12563840; XCP=0x0000000C (0x300 - Data access) Backtrace: 0x00C65558 0x00C65ECC 0x00C668F8 0x00C60C84 0x00B7CC34 0x00B72644 0x00B4DB74 0x00B4D9F0 0x00B5481C 0x002D3544 0x0003C744 0x000A9914 Kernel loadable modules in backtrace (with dependencies): com.apple.driver.MotorolaSM56K(1.3.3)@0xaf9000 dependency: com.apple.iokit.IOSerialFamily(9.0.0d30)@0x4ba000 dependency: com.apple.driver.AppleI2SModemFamily(1.1.4)@0x8fe000 Exception state (sv=0x22687C80) PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown) It's obvious what tipped me off that it was modem trouble. Every entry in the log was exactly the same too (com.apple.driver.MotorolaSM56K, etc.). So I'm wondering, anyone else with panics related to dialup internet access, any solutions? Could it be caused by a flakey connection?