Hello everyone,
i have Acer aspire 7520 and i want to run Leo on it. I tried to install but i cant see any drives. Here is my laptop specification so if u could tell how can i install it

CPU: Mobile DualCore AMD Turion 64 X2 TL-58, 1900 MHz (9.5 x 200)
Chipset: nVIDIA nForce 7000M-610M, AMD Hammer
RAM: 4gb
Display: NVIDIA GeForce 7000M / nForce 610M (128 MB)
Audio Adapter: Realtek ALC268 @ nVIDIA MCP67 - High Definition Audio Controller
HDD: 160gb
Network Adapter: Atheros AR5007EG Wireless Network Adapter (192.168.1.101)
Network Adapter:NVIDIA nForce Networking Controller

thx

the only solution on this problem is to install on external usb HD.
if use ideneb 10.5.6 the dvd drive work for install.
i have the same notebook.

You could try to change the IDE mode on the BIOS to AHCI mode

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CPU: Intel Pentium Dual E2140 1.6 GHz. Graphics: Intel(R) 82945G (128 MB). Board: Asus P5GC-TVM/S Chipset: Intel Lakeport-G i945GC. HDD: 232 Gb S-ATA Samsung
Version 10.6.2 32bit. Kernel: Vanilla. Audio: VoodooHDA 0.2.2 with prefpane. Video: Stock GMA. PS2 fix: VoodooPS2
USB 2 not working

Acer Aspire 4530-6823
CPU: AMD Athlon™ X2 QL-62 2.0GHz. Graphics: Integrated GeForce® 9100M G. Chipset: nForce® MCP77MH.

I've got the same computer (Aspire 7520) with the same specs..
I looked in the BIOS, but there's no option to change the AHCI modes.. But therefore the is a BIOS update (version 1.32 to 1.33).. Should I apply this upgrade?
What do you think?

I've got the Acer 7220 and faced the exact problem as you. Get the Leo4All distro and apply the PPF-patch with extensions pack 2 (google is your friend, search and you will find). Then get the iDeneb combo update 10.5.8 and there you go! The only thing that doesn't work is graphics hence to the Geforce 7000M (1024x768). Wifi, Atheros 5007EG works whenever it likes so use cable instead.
Actually, the whole experience, in my opinion, suffers a lot when graphics is limited, as my screen is capable of 1440x900.

Cheers and good luck!